Impermanence is not the cause of suffering
There is something behind our suffering
Whenever there is pain of any kind—the pain of aggression, grieving, loss, irritation, resentment, jealousy, indigestion, physical pain—if you really look into that, you can find out for yourself that behind the pain there is always something we are attached to. There is always something we’re holding on to. You can read about it: the first thing the Buddha ever taught was the truth that suffering comes from attachment.